How does the inclusion of carbon black in WPC affect both UV resistance and heat absorption?

The inclusion of carbon black in wood plastic composite (WPC) significantly improves its performance, particularly in terms of UV resistance and heat absorption. Carbon black acts as a UV stabilizer, absorbing harmful ultraviolet rays and preventing degradation of the polymer matrix in WPC. This extends the material's lifespan, especially in outdoor applications where prolonged sun exposure is a concern.

Additionally, carbon black enhances heat absorption due to its high thermal conductivity. This property helps WPC dissipate heat more efficiently, reducing surface temperatures and minimizing thermal expansion. However, excessive carbon black can lead to overheating, so optimal loading levels must be carefully balanced.

Overall, carbon black is a cost-effective additive that boosts WPC's durability and functionality, making it ideal for decks, fencing, and other outdoor structures exposed to harsh weather conditions.